Capacities | Gas Regulator
Table B. 7337-4 Regulator Springs and Maximum Inlet Pressures
Compression Spring
Droop *
20 psig (1.4 bar) 60 psig (4.1 bar) 60 psig (4.1 bar) 60 psig (4.1 bar) 60 psig (4.1 bar) 60 psig (4.1 bar) Max. Operating Inlet Pressure
7337-4-L1 7337-4-G5 7337-4-G10 7337-4-G16 7337-4-G32 7337-4-G80 Regulator Designation
Outlet Pressure Range
Color
Number
-1-+1"w.c. (-3-+3 mbar) 5-9"w.c. (12-22 mbar) 8.5-18"w.c. (21-45 mbar) 14-28"w.c. (35-70 mbar) 0.75-2 psig (50-140 mbar) 2-5 psig (0.14-0.34 bar)
Unpainted
R690-5380 R690-5379 R690-5308 R690-5375 R690-5376 R690-5378
0.5"w.c. (1 mbar) 1"w.c. (3 mbar) 1"w.c. (3 mbar)
Black White
Green
1"w.c. (3 mbar)
Blue
10% 10%
Yellow
* Droop is the difference between outlet pressure selected and that realized when operating at capacities listed in this table .
Table C. 7337-4 Capacities
Inlet Pressure psig (bar)unless otherwise noted 8"w.c. (20 mbar) 14"w.c. (35 mbar)
Capacities scfh (Nm^3/hr)
Regulator Designation
Outlet Pressure Setting
Spring
2 400 (60) 4 100 (110) 6 500 (170) 11 500 (310)
1 (0.07) 2 (0.14) 5 (0.34) 10 (0.69) 20 (1.4) 1 (0.07) 2 (0.14) 3 (0.21) 5 (0.34) 10 (0.69) 20 (1.4) 30 (2.1) 40 (2.8) 50 (3.4) 60 (4.1) 1 (0.07) 2 (0.14) 3 (0.21) 5 (0.34) 10 (0.69) 20 (1.4) 30 (2.1) 40 (2.8) 50 (3.4) 60 (4.1)
Unpainted -1 to +1"w.c. (-3 to +3 mbar)
1"w.c. (3 mbar)
7337-4-L1
22 000 (590) 44 000 (1180) 76 000 (2040) 12 000 (320) 17 000 (460) 21 000 (560) 32 000 (860) 48 000 (1290) 79 000 (2120) 100 000 (2680) 124 000 (3320) 145 000 (3890) 166 000 (4450)
Black 5-9"w.c. (12-22 mbar)
7"w.c. (17 mbar)
7337-4-G5
5 000 (130) 8 200 (220) 12 000 (320) 16 000 (130) 34 000 (910)
White 8.5-18"w.c. (21-45 mbar)
14"w.c. (35 mbar)
7337-4-G10
69 000 (1850) 91 000 (2440) 109 000 (2920) 130 000 (3480) 155 000 (4150)
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Bulletin 7337-4 Page 3
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